Quest Diagnostics

Lab Testing at Quest Diagnostics - Syosset

Quest Diagnostics Patient Service Center in Syosset, NY 11791.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

269 Jericho Tpke
Syosset, NY 11791
Nassau County

516-677-5355

Hours

Monday	6:00 AM – 4:00 PM
Tuesday	6:00 AM – 4:00 PM
Wednesday	6:00 AM – 4:00 PM
Thursday	6:00 AM – 4:00 PM
Friday	6:00 AM – 4:00 PM
Saturday	6:00 AM – 12:00 PM
Sunday	Closed

Nearby alternatives

Citymd Of Syosset
358 Jericho Tpke, Syosset, NY 11791
0.2 mi
LabCorp Hicksville
120 Bethpage Rd Ste 304, Hicksville, NY 11801
2.5 mi
Quest Diagnostics - Plainview
146a Manetto Hill Rd Ste101, Plainview, NY 11803
2.6 mi
LabCorp Plainview
100 Manetto Hill Rd Ste 309, Plainview, NY 11803
2.8 mi
Citymd Of Plainview
1117 Old Country Rd, Plainview, NY 11803
3.2 mi

About this location

Quest Diagnostics Patient Service Center. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.